Arbor Day in Nicaragua is celebrated on the last Friday in June. It was officially established by the government in 1971 and has been observed every year ever since. However, the celebration dates back to 1929, when June 1 of that year was set aside as the day to honor Nicaraguan forests.

International Day of the Tropics is a United Nations observance held annually on June 29. Its main goal is to raise public awareness of the tropical areas, the challenges they face, and the emerging opportunities they present.